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This science project examines the effectiveness of various types of laundry detergents on stains trapped on a white handkerchief.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Check out this fun science fair project idea to explore how building on different types of soil affects the relative stability of buildings in an earthquake.

In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

Find out which part of a flame burns wood the fastest and also if this is true for all types of flames such as candle-flame, burners, and lighters.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

Evaluate if people are more influenced by video or audio advertising.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

This experiment evaluates if personality affects the type of movies that people prefer.

In this science fair project, students investigate how different colors influence appetite.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

In this science fair project, students investigate the applicability of Benford's Law to many sets of everyday data.

This science fair project investigates what type of cookie sheet bakes the best cookies.

This project compares different liquids and the freezing, melting and boiling points of liquids.

Determine if gender affects the ability to identify different smells.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Science fair project that examines the biodiversity of ant populations in various locations.

The objective of this sociologically-inclined experiment is to evaluate whether kids' toy preferences are hardwired or develop as they grow.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Investigate how to keep your fruit fresh for longer. The purpose of this science experiment it to determine which kind of bag best preserves fruit.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

This project will examine the relationship between materials and air resistance.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.